no code implementations • 26 Mar 2023 • Xuchen You, Shouvanik Chakrabarti, Boyang Chen, Xiaodi Wu
In this work, we study the dynamics of QNNs and show that contrary to popular belief it is qualitatively different from that of any kernel regression: due to the unitarity of quantum operations, there is a non-negligible deviation from the tangent kernel regression derived at the random initialization.
no code implementations • 25 May 2022 • Xuchen You, Shouvanik Chakrabarti, Xiaodi Wu
The Variational Quantum Eigensolver (VQE) is a promising candidate for quantum applications on near-term Noisy Intermediate-Scale Quantum (NISQ) computers.
no code implementations • 6 Oct 2021 • Xuchen You, Xiaodi Wu
Specifically, we show for typical under-parameterized QNNs, there exists a dataset that induces a loss function with the number of spurious local minima depending exponentially on the number of parameters.
1 code implementation • 14 Jul 2020 • Daochen Wang, Xuchen You, Tongyang Li, Andrew M. Childs
Identifying the best arm of a multi-armed bandit is a central problem in bandit optimization.
no code implementations • ICML 2020 • Samyadeep Basu, Xuchen You, Soheil Feizi
Often we want to identify an influential group of training samples in a particular test prediction for a given machine learning model.
no code implementations • 25 May 2018 • Furong Huang, Jialin Li, Xuchen You
We propose a Slicing Initialized Alternating Subspace Iteration (s-ASI) method that is guaranteed to recover top $r$ components ($\epsilon$-close) simultaneously for (a)symmetric tensors almost surely under the noiseless case (with high probability for a bounded noise) using $O(\log(\log \frac{1}{\epsilon}))$ steps of tensor subspace iterations.